<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript"> 
		    function cal(biryear,birmonth,birday){
		        var result = "从出生到现在已度过了<br>";
		        var now = new Date;
		        var bir = new Date(biryear,birmonth-1,birday);
		        var cha = now - bir;
		        var day = cha / 86400000;
		        var days = parseInt(day);
		        var hour = (cha % 86400000) / 3600000;
		        var hours = parseInt(hour);
		        var minute = (cha % 86400000 % 3600000) / 60000;
		        var minutes = parseInt(minute);
		        var second = (cha % 86400000 % 3600000 % 60000)/ 1000;
		        var seconds = parseInt(second);
		        result += days + "天 >>>" + hours + "小时 >>>" + minutes + "分 >>>" + seconds + "秒";
		        return result;
		    }
		    document.write(cal(2003,10,19));
		</script>

	</body>
</html>
